collisional activation (collisionally activated dissociation)

in mass spectrometry
https://doi.org/10.1351/goldbook.C01157
An ion/neutral species process wherein excitation of a projectile ion of high translational energy is brought about by the same mechanism as in collision-induced @D01801@. (The ion may decompose subsequently.)
Source:
PAC, 1991, 63, 1541. (Recommendations for nomenclature and symbolism for mass spectroscopy (including an appendix of terms used in vacuum technology). (Recommendations 1991)) on page 1554 [Terms] [Paper]